/Engine/Plugins/Runtime/GeometryProcessing/Source/DynamicMesh/Public/Operations/IntrinsicTriangulationMesh.h
Updates the mesh connectivity by adding a new vertex at the vertex-averaged location. Note: this does not update any of the intrinsic lengths, positions, angles, etc. those quantities must be updated after. See ::SplitEdge()
[EMeshResult](API\Runtime\GeometryCore\UE__Geometry__EMeshResult) SplitEdgeTopology ( int32 EdgeAB, [FEdgeSplitInfo](API\Plugins\DynamicMesh\Operations\FSimpleIntrinsicMesh\FEdgeSplitInfo) & SplitInfo )